AI video summarizer
LiveSummarizes long YouTube videos. Web app, extension and billing, built solo.
Next.jsSupabaseTypeScript
I'm Alex Le
AI Application Engineer building and shipping products from idea to production.
Open to work · AI Application EngineerSince Mar 2026
15+ideas
10+built
5+released
I test ideas fast and ship the ones that hold up.
Work
Released 8
Since Mar 2026
English-learning platform
LiveLearn English from YouTube. Web, mobile and extension on one API.
Next.jsNode.jsTailwind
Remote job board
LiveJob board with ATS import, payments and email.
Next.jsSupabaseInngest
Daily focus feed
LiveBuilt end to end by AI agents from a one-page spec in 4 hours.
Next.jsSupabaseInngest
3D online temple
LiveRides the 3D online temple trend: walk a temple in the browser with other visitors. Built in one session. Same base fits 3D shops, markets and cafes.
3D webRealtime
Trend build
Rebuilds the 2000s Yahoo! Messenger chat room: room browser, chatters list, emoticons and buzz.
Next.jsSocket.IOTailwind
3D online lobby
LiveRides the 3D online lobby trend: walk a golden hall in the browser with other visitors, chat and emote.
3D webRealtime
Technical build
Live BTCUSDT chart that flags 12 candlestick patterns.
Next.jsTypeScriptWebSocket
Built and tested 4
SheetDropPiano audio to two-hand sheet music. Idea to working app in 2 days.
Working buildNext.jsFastAPIPostgreSQLDocker
Ride-hailing systemPassenger app, driver app, admin and realtime matching. Built in 2 weeks.
Technical buildExpoNestJSPostgreSQLRedis
Job board for a recruiting agencyJob listings fed from the spreadsheet the client already uses.
Working buildNext.jsGoogle Sheets
Website generatorURL in, AI agents output spec, design, code and review.
ExperimentNode.jsBashNext.jsDocker
Cartly
NovaShop
GiangSport
SocialPulse
AgentDesk
Dựng Nước Ký
VibeWave
Nhịp Trực
TiệmSố
KnitJoy
Some products are not public yet. Details and demo on request.
How I build
01 ResearchStudy the product, its users and the market before deciding what to build.
02 RequirementsDefine scope, priorities, risks and acceptance criteria. Signed off before design starts.
03 DesignDesign every screen and state, then approve the working UI before backend work begins.
04 Phased buildSmall phases with a clear done state. Coding agents implement, automated checks gate each phase.
05 Code reviewSeparate frontend and backend reviews for correctness and security. Findings are logged, then fixed.
06 AcceptanceClean rebuild, end-to-end tests against every acceptance criterion, and a written report.
AI agents accelerate delivery. I own the scope, architecture, security and final sign-off, and every lesson becomes a rule for the next project.
Skills
Product engineering
Next.js / React
TypeScript
Tailwind
Expo / React Native
Chrome extensions
Shopify extensions
Backend & data
Node
NestJS
FastAPI
Supabase / Postgres
MongoDB
Redis
Docker- Background jobs
AI engineering
LLM integration- Async AI pipelines
- Audio-to-score
- Web reverse-engineering
AI-assisted workflow
Claude Code- Codex
Cursor
Antigravity- Custom skills: planning, review, autonomous runs
Also worked with: Remix, Cocos Creator, Flutter, Vue, Ruby on Rails, Golang, GraphQL
Experience
Freelance (small studio, name withheld)Freelance Developer
2025 – PresentBuilds web products for clients end to end, from requirements to delivery, with AI coding agents.
FiregroupSenior Front End Developer
2024 – 2025Led frontend for AI-powered Shopify apps and Chrome extensions, on an app architecture reused across projects.
RARKSUL VietnamSenior Front End Developer
2023 – 2024Moved a decade-old monolithic website platform to a Vue.js frontend on microservices and led code reviews.
Innotech Vietnam CorporationFreelance Front End Developer
2023Frontend lead on a property website and a warehouse management system handling 6M+ records.
SnapMart Inc. – Landers.phFront End Developer
2019 – 2023One of the first three members building the Landers e-commerce platform, web, mobile app and order management.